What would learning to teach look like if we built on what we know about what works? Here is one vision of the future: For as long as she could remember, Gloria had wanted to teach. As a little girl, she would sit and read to toddlers, round up her friends to play school, and explain the mysteries of the universe to anyone who would listen. In high school, as part of a Teacher Cadet program, she began to look with interest at the many ways young children learn when she served as a teacher’s aide. She felt she could spend a lifetime studying children without ever running out of mysteries. When she arrived at college, Gloria pursued a math major, taking some courses that encouraged